Best Aliens Games on Steam

Unlike generic lists, our strategy game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated aliens games. For those who prefer not to search, check out lists of the most played, top deals and best free to play Aliens games on Steam.

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RetroMaze A relaxing Retrowave stylized maze game that increases the difficulty as you progress through the levels. RetroMaze has 30 levels and a beautiful visual concept, as well as an exciting soundtrack.

Price 1.00€
Rating 9.1
Release 21 May 2018
Signal Simulator Game inspired by SETI. Take the role of a scientist to find an extraterrestrial signal .Control massive Radio Antennas by using interactive control in your Observatory. Detect , download and decode unknown or story telling signals. Manage and Maintain an electrical system to improve your systems and make it more efficient.

Price 16.00€
Rating 7.7
Release 29 Apr 2018
Attack of the Earthlings Take on Galactoil, a comically dysfunctional intergalactic energy corporation, and its larger-than-life employees in a tactical-stealth game that fuses satisfying strategic gameplay and dark comedy in a quirky single-player story.

Price -94% 0.81€
Rating 7.9
Release 08 Feb 2018
Subnautica Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive.

Price -67% 10.05€
Rating 9.6
Release 23 Jan 2018
Swarm Queen Swarm Queen is a quick-to-learn but tactical and challenging tug-of-war strategy game about insectoid aliens trying to murder each other.

Price 6.49€
Rating 8.5
Release 19 Dec 2017
Megaton Rainfall Become an indestructible interdimensional superbeing in this first-person superhero game, and save Earth from an alien invasion. Be careful though - you are so powerful you can destroy entire skyscrapers (unintentionally) when you miss your otherworldly target...

Price 15.99€
Rating 6.9
Release 17 Nov 2017
Let Them Come Let Them Come is a fast paced pixel art shoot ‘em up. Twitchy trigger fingers and focused battle tactics are the order of the day as wave after wave of alien-like creatures try to take you down.

Price -95% 0.40€
Rating 8.1
Release 03 Oct 2017
HIVESWAP: ACT 1 A hand-drawn tribute to hilarious '90s adventure games (with none of the accompanying frustration). Play as Joey Claire, a puzzle-solving teen snatched out of her time (1994) and place (Earth) and stranded on a hostile alien planet on the brink of rebellion.

Price -91% 0.62€
Rating 8.9
Release 14 Sep 2017
The Land of Pain The Land of Pain is a Lovecraftian horror adventure. After something strange appears in the woods, you'll have to learn how to survive as you fend off a dark and disturbing evil. Flee from an unrelenting enemy, solve puzzles, and unravel the ancient mystery that's befallen this land.

Price -80% 2.39€
Rating 7.2
Release 13 Sep 2017
X-Morph: Defense Unique fusion of a top-down shooter and tower defense strategy. You are the invader! Use destructive weapons or lead your enemies into a maze of towers. Strategize in the build mode by carefully selecting various types of alien towers or throw yourself right into the heat of the battle.

Price -98% 0.56€
Rating 8.8
Release 30 Aug 2017
Arcade Mayhem Juanito Arcade Mayhem Juanito is a retro experience about arcade-hopping. Teleport into different video games, play with unique mechanics inspired by well-known arcade games, face stunningly animated bosses and join the fight against the clonocell invasion.

Price 9.99€
Rating 8.7
Release 03 Aug 2017
Solstice Chronicles: MIA In this 2-player twin-stick shooter, use a friendly drone for a game-changing abilities. Survive waves, upgrade, and uncover the mystery in this cooperative, action-packed experience.

Price -92% 1.04€
Rating 7.0
Release 26 Jul 2017
Tormentor❌Punisher Everything in Tormentor❌Punisher can be killed in one hit, from bosses to yourself. Bosses conjure traps to make the arena hellish. Demons adjust to your play style and punish you. Perform combos on enemies and gain cool upgrades. Reload your machine gun by firing your shotgun. Let's do this!

Price -70% 2.39€
Rating 8.3
Release 02 Jun 2017
Prey In Prey, you awaken aboard Talos I, a space station orbiting the moon in the year 2032. You are the key subject of an experiment meant to alter humanity forever – but things have gone terribly wrong. The space station has been overrun by hostile aliens and you are now being hunted.

Price -87% 4.00€
Rating 8.9
Release 04 May 2017
Alien Swarm: Reactive Drop Co-operative top-down shooter game available for free. An epic bug hunt featuring a unique blend of co-op play and squad-level tactics.

Price Free to play
Rating 9.3
Release 20 Apr 2017
Halo Wars: Definitive Edition Halo Wars: Definitive Edition is an enhanced version of the real-time strategy classic, Halo Wars, updated to run natively on PC. Halo Wars: Definitive Edition includes improved graphics, new achievements and all of the DLC created for the landmark real-time strategy game.

Price 19.99€
Rating 8.8
Release 20 Apr 2017
Turok 2: Seeds of Evil Having defeated the Campaigner, Turok throws the Chronocepter into a waiting volcano to destroy it. Unfortunately the blast awakens an even deadlier force - The Primagen. Once again a Turok is tasked with restoring peace to the land and stopping the Primagen from merging Earth with the nether world.

Price -95% 1.17€
Rating 8.7
Release 16 Mar 2017
Codex of Victory In this sci-fi turn-based strategy with real-time base-building elements, you’ll be defending human territories against the transhuman Augments. Expand your HQ, and manufacture and upgrade an army of advanced drones to wage interplanetary war for Humanity!

Price -94% 1.00€
Rating 6.6
Release 16 Mar 2017
Cosmic Express Plan the train route for the universe's most awkward space colony!

Price -98% 0.33€
Rating 8.6
Release 16 Mar 2017
Hive Jump HIVE JUMP is a sci-fi action platformer for 1-4 players blending run ‘n gun gameplay with roguelike elements.

Price -90% 2.14€
Rating 6.6
Release 18 Jan 2017
Alien Shooter TD Innovative Tower Defense inspired by legendary Alien Shooter series! The game was created in keeping with the best traditions of Sigma`s games, no concessions of any kind - everything is just like in real life!

Price -93% 0.70€
Rating 8.1
Release 13 Jan 2017
8-Bit Invaders! 8-Bit Invaders! is a fast-paced, retro Real-Time Strategy game for the PC. Control the military might of the Galactic Marine Corps or Invade with the devastating power of the Cranioids! Mine, Build, and Fight your way to victory! Conquering the Multiverse was never so easy.

Price -86% 2.18€
Rating 7.8
Release 16 Dec 2016
Duke Nukem 3D: 20th Anniversary World Tour Frag like it’s 1996 – this time with even more asses to kick! Join the world’s greatest action hero in Duke Nukem 3D: 20th Anniversary World Tour as he saves Earth once again, kicking alien ass and saving babes across the globe along the way.

Price -96% 0.88€
Rating 8.2
Release 11 Oct 2016
Half-Life: A Place in the West In a devastated America, sinister commandos are kidnapping children and taking them to a hidden city with a mysterious cosmic tower at its heart – a tower that may prove to be humanity’s salvation, or its doom. Join three survivors in this fan-made comic as they attempt to unlock the city’s secrets.

Price Free to play
Rating 8.2
Release 29 Sep 2016